Measurement area arrangement auxiliary tool for detecting concrete compressive strength through rebound method

Abstract

The utility model provides a testing area arrangement auxiliary tool for detecting concrete compressive strength by a rebound method, and mainly relates to the field of concrete wall surface detection equipment. A testing area arrangement auxiliary tool for detecting concrete compressive strength through a rebound method comprises a stand column and a folding rod. The portable marking device has the beneficial effects that the folding structure consisting of the folding rods is arranged, so that the device can be randomly expanded or contracted, the device can be contracted to a size suitable for carrying, and the folding structure can be expanded when the device needs to be used, so that the elastic rope on the device is expanded to form a grid for marking the wall surface or the ground; and the size of the device can be freely adjusted, so that the device can be suitable for various kinds of scribing work.

Description

Technical Field

[0001] The utility model mainly relates to the field of concrete wall surface detection equipment, in particular to an auxiliary tool for arranging a measurement area for detecting concrete compressive strength using a rebound method. Background Art

[0002] There are many ways to test the strength of concrete, and the main testing methods can be divided into destructive methods and non-destructive methods. Among them, the common method of destructive method is to obtain test blocks by direct sample preparation or local sampling, and then use a pressure testing machine to compress the test blocks to obtain compressive strength. Since it is necessary to sample and destroy the components, it has great limitations. At the same time, the testing process is complicated, the operation is cumbersome, and the scope of application is small. Non-destructive testing, as the name suggests, is a method that can perform compression testing on site without destroying the components. Among these methods, the rebound method is more commonly used. The rebound method is tested through a rebound tester. Its principle is to use a spring-driven heavy hammer to hit the concrete surface through a striking rod, measure the distance the heavy hammer is rebounded, and use the rebound value as an indicator related to strength. Then, the strength value of the component concrete is converted by the established regression equation or calibration curve. The rebound method is simple to operate, fast and economical, and has considerable accuracy. Therefore, it is widely used in the field of concrete testing.

[0003] At present, the conventional practice is to select the specified number of measurement areas on the same component during on-site rebound testing of concrete components, use a marker to draw a 4×4 square grid with a side length of 5 cm at each measurement area, use a rebound hammer to rebound in the grid and record the readings. The work intensity of personnel is high and the operation needs to be repeated many times. Some existing auxiliary devices are very bulky and are not suitable for testing large areas of multiple floors. Therefore, a simple, portable, effective and practical auxiliary device for arranging measurement areas for rebound testing of concrete compressive strength is studied, which is of great significance to the standardization of the operation of rebound testing of concrete compressive strength in the field of engineering construction and the authenticity and reliability of the test data. Utility Model Content

[0004] In order to address the deficiencies in the prior art, the utility model provides an auxiliary tool for arranging measurement areas for detecting the compressive strength of concrete using the rebound method. The main effect is to reduce the size of the device by arranging a foldable structure, facilitate the storage and carrying of the device, and facilitate personnel to carry out inspections on multi-floor and multi-surface concrete surfaces. In addition, by arranging a uniformly unfolded support device and a marking device on the folding device to control the accuracy of marking, the accuracy of the work can be improved and the detection error can be reduced. In addition, the size of the device can be freely changed, which is convenient for marking measurements of other specifications.

[0005] In order to achieve the above-mentioned purpose, the utility model is realized through the following technical solutions:

[0006] A rebound method for detecting concrete compressive strength measurement area layout auxiliary tool, comprising a column and a folding rod, wherein the number of the columns is four and they are arranged in a rectangular shape, the bottom fixed sleeve of the column is provided with a fixed sleeve flush with its bottom, the upper part of the column is provided with a sliding sleeve and is slidably connected to it, and a rotating seat is fixedly provided on both sides adjacent to the surface of the fixed sleeve and the sliding sleeve, a rotating shaft is provided inside the rotating seat and is fixedly connected to it, the side ends and the middle part of the folding rod are provided with rotating shaft holes, the folding rod is sleeved on the rotating shaft through the rotating shaft holes provided at the ends and is cross-arranged, and a plurality of groups of the folding rods are continuously cross-arranged at the ends of the folding rods and the rotating shaft holes of the cross parts of the ends are aligned, and a rotating shaft is provided inside the rotating shaft hole to make the cross-folding rods be rotatably connected, and at the end The rotating shaft holes provided at the ends of one group of folding rods are sleeved on the rotating shafts provided on another group of columns, so that each of the columns is connected to each other in a rectangular shape through the folding rods. The folding rods are fixedly provided with limit plates at both ends of the rotating shafts, and the limit plates are fitted with the folding rods for sliding connection. The limit plates provided on the inner side of the bottom end of the folding rods are provided with a rotating support seat and are rotatably connected to the limit plates. A rotating support rod is provided at the bottom of the rotating support seat, and an elastic rope is provided between the corresponding rotating support rods on both sides of the device to connect the two to each other. A fixed support seat is fixedly provided inside the rotating seat provided on the fixed sleeve and is fixedly connected to the rotating seat, and a fixed support rod is fixedly provided at the bottom of the fixed support seat and is fixedly connected to the rotating seat, and the corresponding fixed support rods on both sides of the device are connected to each other by the elastic rope.

[0007] Furthermore, a guide seat is provided on the limit plate provided on the inner side of the upper end of the folding rod, a guide hole is opened on the guide seat, a guide rod is provided inside the guide hole and is slidably connected to the guide rod, and the guide rod is fixedly connected to a rotating support seat provided on the limit plate provided on the inner side of the bottom end of the folding rod.

[0008] Furthermore, a support seat is fixedly provided at the bottom end of the column.

[0009] Furthermore, a connecting column is fixedly provided on the upper end of the column, a multi-stage telescopic rod is fixedly provided on the connecting column, a flat plate is provided on the upper side of the end of each multi-stage telescopic rod, and the flat plate is fixedly connected to the upper side of the end of the multi-stage telescopic rod.

[0010] Furthermore, a handle is fixedly provided on the upper surface of the flat plate, and the handle is two and arranged in parallel.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. The foldable structure is used to reduce the size of the device, making it easier to store and carry the device, and to facilitate personnel to inspect concrete surfaces on multiple floors and surfaces;

[0013] 2. By arranging a uniformly unfolded support device and a marking device on the folding device to control the accuracy of marking, the accuracy of the work can be improved and the detection error can be reduced;

[0014] 3. The size of the device can be freely changed, which is convenient for measuring other specifications of marking. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the structure of the utility model;

[0017] Figure 3 It is a schematic diagram of the structure of the utility model;

[0018] Figure 4 It is a schematic diagram of the column structure of the utility model;

[0019] Figure 5 It is a schematic diagram of the folding rod structure of the utility model.

[0020] The numbers shown in the accompanying drawings are: 1. column; 2. folding rod; 3. fixed sleeve; 4. sliding sleeve; 5. rotating seat; 6. rotating shaft; 7. rotating shaft hole; 8. rotating shaft; 9. rotating support seat; 10. rotating support rod; 11. elastic rope; 12. fixed support seat; 13. fixed support rod; 14. guide seat; 15. guide hole; 16. guide rod; 17. support seat; 18. connecting column; 19. multi-stage telescopic rod; 20. flat plate; 21. handle; 22. limit plate. DETAILED DESCRIPTION

[0021] The utility model is further described in conjunction with the accompanying drawings and specific embodiments. It should be understood that these embodiments are only used to illustrate the utility model and are not used to limit the scope of the utility model. In addition, it should be understood that after reading the content taught by the utility model, those skilled in the art can make various changes or modifications to the utility model, and these equivalent forms also fall within the scope defined by this application.

[0022] Embodiment: A tool for arranging measurement areas for testing concrete compressive strength using the rebound method

[0023] like Figure 1-5 As shown, a rebound method for testing concrete compressive strength measurement area layout auxiliary tool, the specific structure of which includes:

[0024] A rebound method for detecting concrete compressive strength measurement area layout auxiliary tool, comprising a column 1, a folding rod 2, the number of the columns 1 is four and arranged in a rectangular shape, the bottom of the column 1 is fixedly sleeved with a fixed sleeve 3 flush with its bottom, the column 1 is sleeved with a sliding sleeve 4 and slidably connected with it, the fixed sleeve 3 and the sliding sleeve 4 are fixedly provided with a rotating seat 5 on both sides adjacent to the surface, the rotating seat 5 is provided with a rotating shaft 6 fixedly connected with it, the side ends and the middle of the folding rod 2 are provided with a rotating shaft hole 7, the folding rod 2 is sleeved on the rotating shaft 6 through the rotating shaft hole 7 provided at the end The folding rods 2 are arranged crosswise, and several groups of the folding rods 2 are arranged crosswise at the ends of the folding rods 2, and the shaft holes 7 of the cross parts of the ends are aligned, and the shafts 8 are arranged inside the shaft holes 7 to make the crossed folding rods 2 rotatably connected, and the shaft holes 7 provided at the ends of the last group of folding rods 2 are sleeved on the shafts 6 provided on another group of the columns 1, so that the columns 1 are connected to each other in a rectangular shape through the folding rods 2, and the ends of the folding rods 2 and the shafts 8 on both sides are fixed with limit plates 22, and the limit plates 22 are fitted with the folding rods 2 The folding rod 2 is connected by sliding, and each sliding sleeve 4 is driven to rotate on the column 1, so that the folding rod 2 is in an open or contracted state for adjusting the size. The limit plate 22 provided on the inner side of the bottom end of the folding rod 2 is provided with a rotating support seat 9 which is rotatably connected with it. The bottom of the rotating support seat 9 is provided with a rotating support rod 10. The corresponding rotating support rods 10 on both sides of the device are provided with elastic ropes 11 to connect the two to each other, so that when each folding rod 2 is in an open state, the corresponding rotating support rod 10 can pull the elastic rope 11 to make The straightening device is used for marking lines on the wall. A fixed support seat 12 is fixedly provided inside the rotating seat 5 provided on the fixing sleeve 3 and is fixedly connected thereto. A fixed support rod 13 is fixedly provided at the bottom of the fixed support seat 12 and is fixedly connected thereto. The corresponding fixed support rods 13 on both sides of the device are interconnected by the elastic rope 11, and are used for lengthening the distance between each of the uprights 1 and the rotating seat 5 provided thereon when each of the folding rods 2 is in an open state. The corresponding fixed support rods 13 provided on the rotating seat 5 can pull the elastic rope 11 to make it straight for marking lines on the wall.

[0025] A guide seat 14 is provided on the limit plate 22 provided on the inner side of the upper end of the folding rod 2, and a guide hole 15 is opened on the guide seat 14. A guide rod 16 is provided inside the guide hole 15 and is slidably connected to the guide rod 16. The guide rod 16 is fixedly connected to the rotating support seat 9 provided on the limit plate 22 provided on the inner side of the bottom end of the folding rod 2. The guide rod 16 is used to ensure that the rotating support rod 10 provided on the rotating support seat 9 can always be perpendicular to the corresponding vertical limit plates 22 provided on the upper end of the folding rod 2 and the lower end of the folding rod 2 when each folding rod 2 is opened, so that the rotating support rod 10 is always in a vertical state.

[0026] A support base 17 is fixedly provided at the bottom end of the column 1 for supporting the device by placing it on a wall or the ground.

[0027] A connecting column 18 is fixedly provided at the upper end of the column 1, and a multi-stage telescopic rod 19 is fixedly provided on the connecting column 18. A flat plate 20 is provided on the upper side of the end of each multi-stage telescopic rod 19, and the flat plate 20 is fixedly connected to the upper side of the end of the multi-stage telescopic rod 19, so as to make the multi-stage telescopic rod 19 extend or contract as the device is expanded or contracted, and the ends of the multi-stage telescopic rod 19 are connected through the flat plate 20, so as to fix the entire device.

[0028] A handle 21 is fixedly provided on the upper surface of the tablet 20. The handles 21 are two and arranged in parallel to facilitate carrying and placing the device on a wall for operation.

[0029] Working principle:

[0030] When the device is in use, the folding structure is formed by the folding rod 2, so that the folding rod 2 can be retracted or opened, and a support rod that can always be vertical is arranged on the folding rod 2 structure, and an elastic rope 11 is arranged on the support rod. When the folding rod 2 is opened, the elastic rope 11 is straightened to form a 4×4 detection grid. The elastic rope is immersed in dye to mark the wall or the ground. It is simple and convenient. The device can be retracted and smaller, and a fixing device and a handle 21 that is convenient to carry and use are arranged, so that the device is easy to use and suitable for carrying. Furthermore, the device can change the telescopic size at will to perform marking work of various specifications. The device has a simple structure and is easy to use, which greatly reduces the work intensity of personnel and is suitable for popularization and use.

[0031] In the interpretation of the present invention, it should be noted that the terminology indicating the orientation is only for the convenience of description and understanding, and is not the only limitation on the installation position of the specific technical features, and does not exclude other possible installation methods.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. An auxiliary tool for arranging measurement areas for testing concrete compressive strength using a rebound method, comprising a column (1) and a folding rod (2), characterized in that: The number of the columns (1) is four and they are arranged in a rectangular shape. The bottom of the column (1) is fixedly sleeved with a fixed sleeve (3) flush with the bottom of the column (1). The column (1) is sleeved with a sliding sleeve (4) and is slidably connected to the column (1). A rotating seat (5) is fixedly arranged on the adjacent two sides of the surface of the fixed sleeve (3) and the sliding sleeve (4). A rotating shaft (6) is arranged inside the rotating seat (5) and is fixedly connected to the column (1). The side ends and the middle of the folding rod (2) are provided with a rotating shaft hole (7). The folding rod (2) is sleeved on the rotating shaft (6) through the rotating shaft hole (7) provided at the end and is cross-arranged. At the end of the folding rod (2), a plurality of groups of the folding rods (2) are cross-arranged and the rotating shaft holes (7) of the cross-section of the end are aligned. A rotating shaft (8) is arranged inside the rotating shaft hole (7) so that the cross-sectioned folding rods (2) are rotatably connected. The rotating shaft hole (7) provided at the end of the last group of folding rods (2) is sleeved on another group of folding rods (2). The rotating shaft (6) is provided on the column (1) of the group, so that each column (1) is connected to each other in a rectangular shape through the folding rod (2); the folding rod (2) and the rotating shaft (8) are fixedly provided with limit plates (22) at both ends of the two sides, and the limit plates (22) are fitted with the folding rod (2) for sliding connection; the limit plates (22) provided on the inner side of the bottom end of the folding rod (2) are provided with a rotating support seat (9) for rotational connection therewith; a rotating support rod (10) is provided at the bottom of the rotating support seat (9); an elastic rope (11) is provided between the rotating support rods (10) corresponding to the two sides of the device to connect the two together; a fixed support seat (12) is fixedly provided inside the rotating seat (5) provided on the fixed sleeve (3) for fixed connection therewith; a fixed support rod (13) is fixedly provided at the bottom of the fixed support seat (12) for fixed connection therewith; the fixed support rods (13) corresponding to the two sides of the device are connected to each other by the elastic rope (11).

2. The auxiliary tool for arranging measurement areas for rebound method detection of concrete compressive strength according to claim 1, characterized in that: A guide seat (14) is provided on a limit plate (22) provided on the inner side of the upper end of the folding rod (2), a guide hole (15) is provided on the guide seat (14), a guide rod (16) is provided inside the guide hole (15) and is slidably connected thereto, and the guide rod (16) is fixedly connected to a rotating support seat (9) provided on the limit plate (22) provided on the inner side of the bottom end of the folding rod (2).

3. The auxiliary tool for arranging measurement areas for rebound method detection of concrete compressive strength according to claim 1, characterized in that: A support seat (17) is fixedly provided at the bottom end of the column (1).

4. The auxiliary tool for arranging measurement areas for rebound method detection of concrete compressive strength according to claim 1, characterized in that: A connecting column (18) is fixedly provided at the upper end of the upright column (1), a multi-stage telescopic rod (19) is fixedly provided on the connecting column (18), a flat plate (20) is provided on the upper side of the end of each multi-stage telescopic rod (19), and the flat plate (20) is fixedly connected to the upper side of the end of the multi-stage telescopic rod (19).

5. The auxiliary tool for arranging measurement areas for rebound method detection of concrete compressive strength according to claim 4, characterized in that: The upper surface of the flat plate (20) is fixedly provided with handles (21), and the handles (21) are two and arranged in parallel.

Images